农学学报Issue(6)：59-64,6.
杭州市不同农业地貌区耕地土壤肥力的差异及施肥对策
Differences in Soil Fertility of Cultivated Land in Different Landforms of Hangzhou Region and Its Fertilization Countermeasures
摘要
Abstract
In order to understand the spatial variation in soil fertility of cultivated land in Hangzhou and guide the scientific fertilizing, the author analyzed the differences in pH value, organic matter, total N, available P, available K and CEC of 4 agricultural landforms, including plain with water network, coastal plain, valley plain and hilly areas. The results showed that cultivated land acidification in valley plain and hilly areas were obvious in Hangzhou. The contents of organic matter and total nitrogen and fertilizer retention capacity (CEC) in coastal plain were lower than those of other areas significantly. Except the plain with water network, soil available K of cultivated land was generally low. Soil available P of those four agricultural landform areas varied greatly because of the difference in fertilization. On the whole, fertility of cultivated soil in water net plain was the highest in this region. Some fertilization countermeasures for each of those agricultural landform areas were put forward. It was important to increase input of organic fertilizers and improve basic fertility of the cultivated land in the coastal plain. Soil testing and fertilization was an important work in the plain with water network, and application rate of fertilizers should be determined according to actual status of soil nutr ients. Using limestone to decrease soil acidity and appropriately increase the dosage of potassium fertilizer should be suitable ways to modify soil quality of the cultivated land in valley plain and hilly areas.关键词
杭州市/耕地土壤/农业地貌/肥力变化Key words
Hangzhou/Cultivated Soil/Agricultural Landform/Fertility Variation分类
农业科技引用本文复制引用
吴崇书,倪中应,刘永红,谢国雄,章林英,季淑枫..杭州市不同农业地貌区耕地土壤肥力的差异及施肥对策[J].农学学报,2015,(6):59-64,6.基金项目
农业部测土配方施肥项目（浙农计发{2008}16号）。 （）
